MAL-2026-5698

    Dashboard / Malicious Package / MAL-2026-5698

    MAL-2026-5698

    Published: 12 Jun 2026Last Modified: 9 Jul 2026

    Summary: Malicious code in nagios-xi (PyPI)

    Details: Source: amazon-inspector (c11c80cc2d314460d61a649c84fd75881388470382be8183b77b362e562a5c7f) On `import nagios_xi`, the package's `__init__.py` (lines 5-8) invokes `socket.gethostbyname("atlass-check.autaeqjhfowvnnmkwhxjtq8x39d8nder1.oast.fun")` inside a silent try/except. oast.fun is ProjectDiscovery's Interactsh out-of-band callback service; the DNS query itself is the exfiltration channel, confirming code execution on the installer's host and leaking the resolver IP to whoever controls the unique 32-character Interactsh subdomain. The package ships no actual functionality — it impersonates the Nagios XI commercial monitoring product (name `nagios-xi`, version `19.5.0` mimicking real Nagios XI versioning) while declaring an anonymous ProtonMail author (`Coding Team <[email protected]>`), a generic `package utility` description, and an empty README. The combination of brand impersonation, placeholder metadata, and an import-time OAST beacon as the package's sole behavior is reconnaissance for a supply-chain attack against developers searching for Nagios XI integrations. Source: kam193 (d8b27c2588accf4f2966f4630a12f9bfdc4ba621403f14237160632447152f23) Installing the package or importing the module exfiltrates basic information about the host, and the package has no other purpose. Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities. Campaign: GENERIC-standard-pypi-install-pentest Reasons (based on the campaign): - The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk. - The package overrides the install command in setup.py to execute malicious code during installation.

    References: https://bad-packages.kam193.eu/pypi/package/nagios-xi, https://pypi.org/project/nagios-xi/19.5.0/, https://pypi.org/project/nagios-xi/19.4.0/

    Affected packages

    Package

    Name: nagios-xi

    Purl: pkg:pypi/nagios-xi

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    19.4.0